- Date
- October 12, 2026, 15:13 local (20:13 UTC)
- Place
- Sextonville, WI
- Injuries
- 1 serious
- Phase of flight
- Maneuvering
- Aircraft
- N473ASSimpson Arthur Monnett Sonerai Iilt
- Defining event
- Maneuvering: Loss of engine power (total)
- Status
- Investigation ongoing
- Investigation class
- Class 3
- NTSB office
- Central Region
- Case key
- 203988
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Aircraft
- Registration
- N473AS
- Reported as
- Simpson Arthur Monnett Sonerai Iilt
- Flight
- Flight test · Part 91
N473ASRegistered now · Simpson Arthur MONNETT SONERAI IILTAirframe modelSimpson Arthur MONNETT SONERAI IILTEngine modelRevmaster 2100D
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Weather
- Wind
- 200° at 10 knots
- Lowest ceiling
- None
- Observed at
- 7 nm away